• Title/Summary/Keyword: Tae Hyuk Park

Search Result 475, Processing Time 0.029 seconds

Small molecule interlayer for solution processed phosphorescent organic light-emitting device

  • Park, Tae-Jin;Park, Jung-Joo;Kim, Gyeong-Heon;Jeon, Woo-Sik;Pode, Ramchandra;Jang, Jin;Kwon, Jang-Hyuk
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2008.10a
    • /
    • pp.928-931
    • /
    • 2008
  • Using 4,4'4"-tris(N-carbazolyl)-triphenylamine (TCTA) small molecule interlayer, we have fabricated efficient green PHOLED by solution process. The maximum current and power efficiency values of 33.7 cd/A and 19.6 lm/W are demonstrated, respectively. Results reveal a way to fabricate the PHOLED using TCTA interlayer by solution process, promising for efficient and simple manufacturing.

  • PDF

Development of the Scale Track to Test Bogie Steering Performance (대차 조향 특성 시험을 위한 축소 트랙 개발)

  • Hur, Hyun-Moo;Park, Jun-Hyuk;You, Won-Hee;Park, Tae-Won
    • Proceedings of the KSR Conference
    • /
    • 2007.11a
    • /
    • pp.301-305
    • /
    • 2007
  • The performance of the railway bogie is classified into the stability and the steering performance. Testing for the bogie stability is conducted on the roller rig. But testing for the bogie steering performance on test facility is very difficult, so the testing for the vehicle curving performance is conducted on the real curve track. And it is desirable to test on the full scale test rig, but it caused many problems relating to test costs, test time. To overcome these problems, the small scale test rig is actively used in the field of bogie stability. Thus, in this paper, we have studied the scale track to test the bogie steering performance. For this, we designed the 1/5 scale test track equivalent to radius 200 curve and confirmed the validity of the testing for the bogie steering performance on the scale curve track through the testing using 1/5 scale bogie.

  • PDF

Cycad revoluta toxicosis in a dog

  • Yoo, Jong-Hyun;Kim, Hyuk-Tae;Park, Chul;Kang, Byeong-Teck;Jung, Dong-In;Woo, Eung-Je;Park, Hee-Myung
    • Korean Journal of Veterinary Research
    • /
    • v.47 no.2
    • /
    • pp.209-212
    • /
    • 2007
  • A 3-year-old female Cocker Spaniel dog acutely developed hepatopathy following ingestion of root of Cycad (Cycas revoluta). Seven hours after the ingestion, she showed acute continuous nausea, vomiting, and marked depression and was presented to the local veterinary clinic. At physical evaluation, the dog showed moderate weakness, pale mucous membrane, jaundice, and dehydration. Serum biochemical analysis revealed elevated alanine aminotransferase and aspartate aminotransferase, and mild azotemia. The dog was treated with intravenous fluid, antibiotics, and hepatic protectants for 10 days and recovered without any sequela. Although the ingestion of Cycad in dogs is rare, it can be treated successfully with appropriate supportive therapy.

Dynamic Round Size Algorithm for Tag Identification of RFID Systems (RFID 시스템에서 태그 인식을 위한 동적 Round Size 알고리즘)

  • Lee Seung-Hyuk;Byun Young-Ki;Lee Han-Kwon;Baek Hyun-Ok;Park Il-Yong;Park Byoung-Soo;Cho Tae-Kyung
    • Proceedings of the KAIS Fall Conference
    • /
    • 2005.05a
    • /
    • pp.242-245
    • /
    • 2005
  • 본 논문에서는 모든 태그들을 동시에 인식하는데 걸리는 시간을 줄이면서 전력의 소모를 줄일 수 있는 라운드 크기를 동적으로 할당하는 알고리즘을 제시하였다. 또한 시뮬레이션을 통해 제안한 알고리즘이 태그 수를 미리 알지 못하는 상황에서 아주 유용하게 사용될 수 있음을 확인하였다.

  • PDF

a-Si Process-based Advanced SPC TFT for AMOLED Application

  • Lee, Seok-Woo;Lee, Sang-Jin;Ahn, Tae-Joon;Park, Soo-Jeong;Kang, Su-Hyuk;Jung, Sang-Hoon;Lee, Hong-Koo;Kim, Sung-Ki;Park, Yong-In;Kim, Chang-Dong;Yang, Myoung-Su;Kang, In-Byeong;Hwang, Yong-Kee
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2009.10a
    • /
    • pp.961-963
    • /
    • 2009
  • a-Si process-based advanced-SPC (a-SPC) TFT has been developed and verified by manufacturing an AMOLED panel having improved cost competitiveness by using the existing a-Si infrastructure. The a-SPC TFT had superior device reliability and current drivability to a-Si TFT to meet the requirements of AMOLED backplane.

  • PDF